Car-underframe.



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V. M. SUMMA.

GAR UNDER-FRAME.

APPLIUATION FILED MAR.S1,1910,

Patented Mazng, )i912 VfB/l. SUMMA.

GAR UNDERFRAMB.

APPLICATION FILED MAR. 31.1910.

LLlB. r Patented Mar. 26, i912.

2 SHEETS-SHEET 2.

` l i l Vicio/PM Summa llt) bolster D, and also by entren svrnfrnsPATENT ernten.

` VICTOR M. SUT/IMA, OF ST. LOUIS, MISSOURI, ASSGOR TO AMERICAN CAR ANDFOUNDRY COMPANY, '0F ST. LOUIS,MISSOURI, A CORPORATION OF NEW JERSEY.

cenfunnnnrnemn.

enseres.

Specification of Letters Patent.

atcnted Mar. 2d, Ltll.

Application. filed March 31, 1910. Serial No. 552,508.

it'appertains to malte and to use the same,Y

reference being had to the accompanying drawings, which illustrate thepreferred form of the invention, though -it is'to be understood that the.invention is not limited to the exact details of construction shown anddescribed, it 1s obvious that various moditlcatibns thereof will occurto persons yskilled in the art.

ln said drawings: Figure 1 is a plan 'view of an underirame embodyingthe features of the present invention, partsv being broken away for thesaving of space.V Fig. is a longitudinal section therethrough taken onthe plane indicated by line 2-2 of Fig. 1. Fig. 3 is a transversevertical section` taken on the plane indicated by line 3-3 of Fig. 2,looking in the direction indicated by the arrows. Figi. 4 is a similarvview taken on the plane indicated byline 4-4 of Fig. 2, looking in thedirection indicated by the arrows. Fig'. 5 is an end elevation. Fig. 6is a.4 detail section taken on the plane indicated by line 6-6 of Fig.3, and looking in the direction of the arrow.

Referring to the details: A indicates the center sill, B, B the sidesills connected to the center sills by the cross bearers C, C and thedivided end sill E.

' The center sill A is constructed of a single I beam extending from endv.to end of the underframe 'and bifurcated at the ends for ac-4commodating draft rigging as hereinafter specilied, said beam beingdivided centrally as at 1, the two halves or sections 6 of the sillbeing connected by rivets passed through laterally extending andoutstanding vertical flanges 2, Q formed at the meeting en s of thesections. 4Said sections are also secured by eted to. the respective topand bott-om flanges of the beam. As each section 6 ot thel Y beamcomprising sill A is an exact duplicate of the other, and all. ot theparts connected to each the same as the parts connected top and bottomsplice plates 4 and 5 rivdiaphragms 16 trated in full and thedescription and show-Ir ing are equally applicable to both. rllhe outerend of-the section 6 is biturcated, terminating in outwardly extendingarms forming the draft sills l', 7, the web of sill A. being formedintegral and continuous with the vertical webs of the arms forming sills7. The upper portion ot the outer ends ot said arms are connected by anintegral web S which extends beyond and between the sections of end sillE, and is depressed as at Y) transversely for accommodatingthe endnailingstrip, not illustrated. lNeb 8 extends outwardly to and is formedintegral with a butler or striking plate S'. The upper portions of theouter ends ot the vertical webs of each sill T terminateI in `laterallyextending flanges 'l0 riveted to the respectivoinner end ot'thecontiguous section of end sill E, the said inner ends ot the section ofthe end sill being spaced by an outstanding portion ol' the connectingweb 8. Sills i' are formed integral with the usual draw bar stops 1l.1l. and the lower port-ions of said arms extend outwardly beneath and tolh'e outer edge ot' the connecting web 8, and are connected by a couplercarrier 12.

Each of the side sills l is preferably a beam of Z section. and isconnected to the respective end sill E by corner bracket 13 and diagonalbrace '14. the latter being connected to the horizontal web ot the sidesill and to a bracket 15 fixed to the end sill.

Bolster D comprises a pair ot outstanding diaphragms 16. each formed ofan. I

phragms 16 and 1s riveted to the upper {ianges I thereof, saiddiaphragms having their lower flanges connected by outstanding enlargements 18 formed integral with the lower tlan ges of sill A. :Thevertical flanges ot the inner terminals o'lthe diaphragms 16 areconnected together by rivets passed there? through and through theintervening web of sill A. The said inner termjnalsof the have the lowerportion of their outstanding vertical flanges rounded as at 19 forproducing the king pinreceiving opening therebetween which openingcommunicates with the .usual center bearing 2O cast integral with lowerflanges of sill A, the web of said sill to the other, only one sectionhas been illusl being cut away within the area surrounded and dependingfrom' by Walls 1Q for leaving the pin recess. i Cast integral with anddepending from the lower.

' edge of each diaphragm l-is the side been,

ing 2l.' Each ofthe diaphragms extendsl outwardly beneath and is fixed,to the Web aglildepending flange of the respective side s1 Atv spacedpoints .'along the length of the sillA are' arranged the cross bearersC, C, each comprising upper and lower angle bar stress'rnembers 2 2 and23 extendin through' sill'A and. connecting the side si ls. Saidsill,.at thev .point of each cross bearer, is formed on vopposite sideswith outstanding vertical flanges 24, and corner web danges extendingbetween the web of the sill A and the tlange Each angle 22 is'- .rivetedto the upper `web 25 and to the flange 24; Each angle 23 is, riveted tothe lower web 25,2ind to flange 24,'said flange' 2e being formed withathickened portion ace'ot'. the lange of angle 23.

24 disposing the vertical Hnge of angle 23 at 1one side of the @lanes ettheA vertical ilange of angle 22 so'asto accommodate an interposedconnecting strut 2b which is ab vtached at itsupper end to the verticalilange of angle 22 intermediate the length thereof, and at its lower endto the vertical flange of angle 23',A saidstrut engaging the inner faceof the ange of angle 22 and the outer The yends Off angle 23 are'rivetedto the an le A22.-

lt will, ot' course, be obvious tiet many n advantages are to be gainedby the present invention, among which .may be named the very desirableadvantage of rendering the center sill capable of being vproduced ofcast steel Without the expense' and dilllcnltof handling a sill of theentire length o the car, and at the Sametime, by the'particnlar splicingthereof at the point specified, cuite as efficient results are attainedas if the sill were. continuons and integral throughout. 0bviously, asmany openings 27 may be left in ther web of the beam comprising sill Aas desired for reducing the weight of the structure and the saving ofmaterial.

What I claim is:

1. In a car under-frame, the combination of a center sill and a bolsterconnected thereto intermediate the length of the sill, said bolstercomprising outstanding diaphragme fixed at their inner ends to thecenter' sill and having curved flanges at theirinner ends geantesdiaphragme and a portion of the material of the Vcenter sill being cutavvay in the area inclosed by said curved flanges.

3. .in a car underfrarne, the combination .of an l. beam center sill anda bolster connected thereto, intermediate the length thereof, andcomprising outstanding diaphragme each having laterally extending'flanges at its inner end, and a portion of" each of said flanges beingcurved for producing a central king fpin recess, and means connectingsaid flanges lto the center sill, a portion of the material of thecenter sill being cut away within the area inclosed by thecurvedportions of the flanges. 1

41 ln a car underframe,tl1c combination an I beam center sill, av centerbearing Aof iiitegral therewith, and a built up bolster conabove thecenter of an I. beamv center sill, a built up bolster connected theretovintermediate the lengthl thereof, the lower flanges of the center sill.being formed with outstanding enlargements beneath and connected to thebolster, and a center bearing formed integral with and depending fromsaid lower flanges With-- in the area of said enlargements.

7. ln acar nnderframe, the combination' ont a cast I beam center sillhaving laterally' i extending flanges, intermediate thelength of thesill, and between the upper and lower flanges of' the beam, and a builtup cros's bearer fined to the said laterally extendiiig flanges.

8. In a car underf'rame, the combination of a flanged beam center sill,built up vcross heal-ers having their chords disposed in diiferentvertical planes, flanges outstanding from the center sill for snuglyreceiving the chords, and means connecting said chords to said flanges:y

9. ln a car underframe,'the combination of a ilanged beam center sill, avertical flange outstanding from each side thereof, a pair of horizontalWebs connecting each of said vertical flanges to the main 1vv/eb of saidsill, a portion of one face of each'vertical flange being spaced fromthe Vvertical ,plane ot' theother portion of the same face of saidflange, and a cross bearer'comprising chords v connected to said flangesand Webs, one of the chords being connected thereto in a dif` ferentvertical plane from ythe other.

l0. A. cast center sill comprising ailanged beam formed in two sections,and having the flanges of the diaphragins being curved for producing aking pin recess between the their meeting 'ends provided with the upperand lower surfaces substantially: contir nous of an I-benm center sill,and n built up bol-.

ster connected thereto intermediate the length thereof, the lowerflanges of the center sill being formed with outstanding enlargementsbeneath and connected to the bolster, and e center bearing formedintegral with the center sill adjacent seid en-.

largements.

12. In 'a car underfrnme, the combination of a flanged center sill abuilt up bolster connected thereto, intermediate the length thereof, theflanges of the center sill being formed with outstanding enlargementsconnected to the bolster, and a center bearing formed integral with thecenter sill adjacent said' enlargements.

13. In a car underframe, the combination of a center sill havinglaterally extending horizontal flanges intermediate its length andbetween its upper nd lower longitudinel margins, and n eros. bearerfined to seid flnige and 'extending through said center sil 14. Io a eurunderfr'ame, the combinzition ot' o center sill having flangesintermediate its length und between its upper and lower longitudinalmargins, and a cross-bearer having 15. A cust center sill comprising :tflanged beam formed in t-wo sections, the adjacent endsl ol the sectionsbeihng formed with vcrtical flanges, means connecting the vertical.flanges ol one section to the vertical flanges ot' the other section,and u splice plete connecting other portions of said sections.

16. ln an unrlerfrzirne7 the combination of n flanged center sill and abolster tixed thereto, the tlnnges of said center sill being formed withoutstanding enlargements connected to the bolster and said bolster beingextended through said center sill.

In witness whereof, I' have hereunto set my ha'nd in the presence of twowitnesses.

VICTOR M. SUMM.

Witnesses:

(eoAn llocimnnc, Cllnnno'r'rn MITZE.

both its chords xed to Said flanges,

